Edward joiinstone and ernest sydney ross



No. 6I8,273. Patented Jan. 24, I899; E. JOHNSTONE & E. 8. R088.

WINDOW SASH FASTENING.

(Application filed Sept. 28, 1898.)

(No Model.)

1221291222213 Wih Lesses Ml M rap iJNiTno STATES PATENT Grinch.

EDIVARD JOHNSTONE AND ERNEST SYDNEY ROSS, OF HOBART, TASMANIA.

WINDOW-SASH FASTENING.

SPECIFICATION forming part of Letters Patent No. 618,273, dated. January 2&, 1899.

Application filed September 28, 1898. Serial No. 692,103. (No model.)

To all whom it may concern.-

Be it known that we, EDWARD J OHNSTONE and ERNEST SYDNEY Ross, subjects of the Queen of the United Kingdom of GreatBritain and Ireland, residing at Hobart, in the Colony of Tasmania, have invented certain new and useful Improvements in IVindow-Sash Fastenings; and we do hereby declare that the following is a full, clear, and exact description of the invention, which will enable others skilled in the art to which it appertains to make and use the same.

In our invention we employ a bolt sliding in a framing which is to be attached permanently to the meeting-rail of the lower windowsash, and we so arrange a handle or knob by which the said bolt is actuated that when (in order to lock the window) the handle is pushed forward the bolt advances until its end enters a keeper affixed to the meeting-rail of the upper window-sash, while a pawl or catch then automatically enters a notch in the said bolt, and thus locks the bolt in its forward position. When, however, the window is to be unlocked, the said handle or knob must first be depressed and then pulled backward. The said pawl or catch is released by the depression of the handle, thus allowing the bolt to be withdrawn.

In the drawings herewith we show our invention and have designated like parts by the same letters of reference.

Figure 1 is a perspective View of the keeper Z with part of the meeting-rail of the upper sash, to which it is affixed. Fig. 2 is a perspective view of the fastening, with the knob or other handle omitted, affixed to the meeting-rail of the lower sash. Fig. 3 is a side elevation of the bolt and knob-post, with the movable knob shown in section in its uppermost position, the lowermost position being indicated by a dotted line. Fig. 4 shows the fastening in perspective when the parts shown in Fig. 3 are removed. Fig. 5 is a side elevation of the fastening in the unlocked position.

A indicates the bolt, B a transverse notch therein, and C the beveled upper front end of said bolt.

D is the frame of the fastening, having bentup wings E F, which are arranged to form a slideway forbolt A. The win gsE of said frame have also lugs G, which are connected to gether by a fixed pin H. A pawl J is pivoted on the pin I-I between the lugs G, the front end K of each side of the pawl being curled around the pin, as shown in dotted lines in Fig. 5. A knob-post L is fixed permanently to the bolt andpasses upwardly through a slot,l\I in the rear part N of the pawlt' 6., the part behind the pivots. The post is also shown passing up through a slot 0 in a spring P. This spring is fastened to the said rear part N, which it presses'upward, and thus keeps the front end Q of the pawl depressed. The free end of the spring rests on the bolt A in the form shown in the drawings; but the spring might be arranged in various ways and be of spiral or other suitable form.

R is a knob or handle (either spherical, cylindrical, reel-shaped, or of other suitable shape) arranged upon or around the post L, so as in the first place to be able to slide up the same su'fiiciently to allow the spring P to cause the pawl end Q to enter the notch'B and in the second place able to slide down the same sufficiently to enable the rear part N to be depressed, so as to raise the pawl end Q out of the notch B when the operator wishes to unlock the window.

In using this invention the beveled edge C of the bolt will, if the upper sash is not'quite as high as it should be when the bolt is pushing forward, tend to press the same upward by its pressure within keeper Z, and when well fitted the boltof the'fastener will be in contact with the inner surface of the keeper and will act as an antirattler.

It should be observed that the pin H is so located that the parts of the pawl which curl around the said pin either contact with the bolt A (which is below) or nearly contact therewith, thus acting as stops against any improper attempt to force the bolt upward. The

wings E F also secure the bolt against upward or lateral movement.

What we claim is- 1. In combination,in a fastening of the kin set forth, a bolt A having a notch B, a framing D having wings E, F forming a slideway for the bolt and holding the same against movement upward or laterally, lugs G on the wings E, a connection between said lugs and a pawl IOO pivoted to said connection, and adapted to be forced into the said notch by a spring substantially as set forth.

2. In combination,in a fastening of the kind set forth, a sliding notched bolt, a framing having guides therefor a slotted pawl pivoted to the framing and having a spring normally causing depression of the front end of said pawl, and a post affixed to the said bolt, said post having a movable knob or handle thereon adapted to depress the rear part of the pawl, and retract the bolt substantially as set forth.

In witness whereof I have hereunto signed my name, this 26th day of July, 1898, in the presence of two subscribing witnesses.

EDWARD J OHNSTONE. Witnesses:

G. G. TURRI, W. H. (JUBLEY.

In Witness whereof I have hereunto signed my name, this 4th day of August, 1898, in the presence of two subscribing witnesses.

ERNEST SYDNEY ROSS.

Vitnesses:

S. CROSBY GILMORE, GEO. P. HARVEY. 

